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Variability of water quality parameters in selected reservoirs in Prague
Stará, Eva ; Ettler, Vojtěch (advisor) ; Chalupová, Dagmar (referee)
Small water reservoirs in urban areas have important landscape-forming and environmental roles. However, numerous anthropogenic activities can influence the water quality in these urban ponds. This thesis evaluates and compares the water quality in selected ponds in Prague area (Motol, Stodůlky, Háje) by means of regular water monitoring between May and November 2013. Parameters commonly used as indicators of anthropogenic load were monitored (NO3 - , NH4 + , PO4 3- , Cl- , dissolved oxygen, chemical oxygen demand) and supplemented with the investigation of other chemical and physico-chemical parameters (alkalinity, acidity, water hardness, pH, Ca2+ , NO2 - , specific conductivity). Data were evaluated using Czech technical norm (ČSN - EN 75 7221), which defines five categories of surface water quality. Our data indicated that surface water from reservoirs in Motol exhibited the best water quality (1st category), reservoirs from Stodůlky were slightly polluted and reservoirs from Háje exhibited the poorest water quality (with some parameters exhibiting values corresponding to the 4th category). We found statistically significant correlations between the alkalinity, water hardness, COD and concentrations of NO3 - , Ca2+ , Cl- and PO4 3- . Moreover, numerous parameters are dependent on cumulative...
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Comparison of Selected Adsorbents for Removing Metals from Water
Moravčíková, Světlana ; Biela, Renata
Various metals and their compounds are among the number of substances that currently pollute drinking water sources. A laboratory experiment was performed to compare selected sorption materials for removing metals from water. Filter columns filled with selected sorption materials GEH and Bayoxide E33 were used for experimental comparison. The metals arsenic, nickel and lead were removed from the water by sorption. Based on several criteria, Bayoxide E33 was evaluated as a more suitable material.
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Statistical Analysis of Air Pollution by Selected Pollutants
Pernicová, Veronika ; Durnová, Markéta (referee) ; Balgová, Zuzana (advisor)
This thesis analyses an occurrence of detected pollutant concentrations of nitrogen oxides, dust particles of the size od 10 and 2,5 m and ground ozone in years 2015-2019 in seven chosen locations in Brno agglomeration. In the introduction, the thesis describes basic terms, the issues of air pollution and relevant legislation. Individual pollutants are defined and also their effect on environment and human health. After that, the locations of Brno, for which the analysis is made, is specified. The dynamics of development of individual pollutants is shown through a statistical analysis of individual time lines. The analysis also focuses on the difference in the level of pollution during weekdays, holidays, seasons or rush hour. The quantities are also viewed from the point of view of the relevant air pollution limits and the influence of climatic factors, which significantly affect their concentrations.
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Risk of Waste Combustion in Small Boilers
Kopecká, Eliška ; Špiláček, Michal (referee) ; Lisý, Martin (advisor)
The bachelor's thesis deals with the issue of waste combustion in small boilers. In the first chapter, the components of household waste are specified in more detail, as well as the pro-duction and possible waste management. The second chapter is focused on the formation of the pollutants during combustion and their impact on the environment and the human organ-ism. In the third chapter is presented the process of the operation of the waste incinerator and there are mentioned the limit values of the emissions that are released into the air. The fourth chapter deals with the reason for the origin and the comparison of the pollutants aris-ing from combustion in small boilers. Materials defined as household waste and pollutants released from them during incineration are described here. In the end, the results of the the-sis are evaluated.
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Low emission zones as an instrument of air protection in selected European Union's states focusing on the Czech Republic
Vaňhara, Martin ; Žákovská, Karolina (advisor) ; Sobotka, Michal (referee)
The presented diploma thesis provides the comprehensive presentation about the low emission zones that become more and more used instrument of air protection in european metropolises and in smaller cities. There are already circa sixty low emission zones in Deutschland, in the Czech Republic this instrument hasn't been used yet. Therefore the diploma thesis' determined goal was to analyze the legal regulation of the low emissions zones to clearify the division consisting in absence of low emission zones in the Czech Republic. Systematicall structure of the diploma thesis into six part is the result of the author's aim to make the presentation transparent. The first part of the diploma thesis represents the introduction into the theme of the air protection and provides a brief overview of relevant legal regulations just as the analysis of air pollutants including their negative effect on the peopel's health and on the environment. The author provides the presentation of transport regulation possibilities that the cities are able to realize (excluding the low emission zones). The third part deals with the implementation of the low emission zones into the czech law and with the development of legal regulation of the low emission zones. The detailed analysis of current legal regulation regarding the...
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Verification of the use of agro pellets for heating
Muzikářová, Věra ; Musilová, Petra (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with agropellets and their combustion in terms of emissions and efficiency. It consists of two parts. The first part is theoretical, where the search of available types of biomass, production of agropellets and combustion principle is presented. The second part of the thesis is focused on experimental comparison of efficiency and emission class of boiler for various agropellets.
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Forming of solid pollutants from biomass
Havlínová, Denisa ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
This bachelor‘s thesis is divided into two main parts. The first part is research and deals mainly with biomass and pollutants. In this section, we will find a two-dimensional distribution of biomass, a comparison of fuel forms and a discussion of basic pollutants with a focus on solid pollutants. The second part is experimental. It starts with a fuel laboratory, where the water, ash and heat content of the biofuels examined is determined. The following is an investigation of the dependence of the PM formation on the properties of the biomass, which was measured by the measurement of these PM by the filters in the collecting device, while the examined biofuels were gradually burned on the fireplace insert.
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Optimization of Agro-Pellets Boiler
Kurečková, Andrea ; Jecha, David (referee) ; Lisý, Martin (advisor)
The diploma thesis deals with optimization of pellet boiler for agropellets combustion. On the Czech market are mostly available boilers for burning wood pellets. Specially adapted agropellet boilers are pretty expensive. The work is divided into two main parts. The first part contains a research of agropellets, agropellets production and combustions of agropellets. The second part is experimental and describes the combustion test. It describes the measurement procedure, the necessary calculations and evaluation.
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The Issue of Waste Water and its Inclussion in Biology Education
Rychtecká, Karolína ; Skýbová, Jana (advisor) ; Říhová, Dagmar (referee)
This bachelor thesis deals with the topic of wastewater treatment and its use in elementary education. It consists of theoretical and practical part. The theoretical one sums up all types of existing wastewater and polluting substances, besides that it includes the techniques for determinig organic substances. Third chapter deals with water purification through out the history - from the early civilizations to the 20th century. This chapter provides a much needed context for the rest of the thesis. Current techniques of water purification are mentioned in the fourth chapter where are also listed the most common types of water purification facilities. The last chapter of the theoretical part is dedicated to a didactic game for elementary school teaching. Practical part of the thesis consists of recommended activities for educating students about wastewater treatment and the responsibilities we all have concerning this topic. KEYWORDS Pollutants, wastewater treatment plant, history of wastewater treatment, techniques of wastewater purification, didactic game
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